1.i often saw you play football during the summer holidays.为
1.i often saw you play football during the summer holidays.为什么不用played,这是什么用法?2.be going to与will 有何区别 3.A and B are both 是否等于both A and B或both of A and B.both...and 是否等于both of...and?若不能,那什么时候用both ...and ,什么时候用both of 4.用prefer 提问时能否有like ..better 回答?如what sport do you prefer 能否回答成i like basketball better?5.表示‘变成’的词有哪些?如turn green中的turn ,还有get,grow 这些词有啥区别?6.exciting与excited的区别?7.may maybe can 的区别 8.为什么有时用last,first有时有用at last和at first 9为什么有的表时间的词前加介词.如on sunday ,in the morrow 有的却不加,如tomorrow,tomorrow morring